OSV-2023-849 Stack-buffer-overflow in ulocimp_toLanguageTag_74
Not scored
Published
Check this codebase for OSV-2023-849 and fix it if it is affected.
What it is: OSV-2023-849 is a memory corruption vulnerability in icu, published on 15 Sep 2023.
Exploitation: There is no known exploitation of OSV-2023-849 in the wild and no public exploit code.
Affected packages and fixed versions:
- icu (OSS-Fuzz): affected all versions; no fix listed
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/OSV-2023-849/ (Markdown: https://insights.sbomify.com/OSV-2023-849/index.md)
A stack buffer overflow in the ICU library's locale handling allows attackers to potentially execute code or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2023-849?
OSV-2023-849 is a memory corruption vulnerability in icu, published on 15 Sep 2023.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62348
Crash type: Stack-buffer-overflow WRITE 1
Crash state:
ulocimp_toLanguageTag_74
icu_74::Locale::toLanguageTag
locale_morph_fuzzer.cpp
Which versions are affected by OSV-2023-849?
1 open source package ship an affected version, including icu.
| Package | Affected | Fixed in |
|---|---|---|
icu OSS-Fuzz | All versions | None |
How do I fix OSV-2023-849?
No fix has been published for OSV-2023-849 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is OSV-2023-849 being exploited?
There is no known exploitation of OSV-2023-849 in the wild and no public exploit code.